Film everyone in wide thoroughfare (4,6)
I believe the answer is:
wall street
'film' is the definition.
(1987 film)
'everyone in wide thoroughfare' is the wordplay.
'everyone' becomes 'all' (I've seen this before).
'in' indicates putting letters inside.
'wide' becomes 'w' (abbreviation e.g. in cricket).
'thoroughfare' becomes 'street' (street is a kind of thoroughfare**).
'w'+'street'='wstreet'
'all' placed into 'wstreet' is 'WALL STREET'.
(Other definitions for wall street that I've seen before include "New York financial centre" , "US financial centre" , "business centre" , "US financial area" , "NY financial area" .)